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muzz · (This post was last modified: 2013-05-13 17:12 by muzz.)

Hi There,

I have come across an intersting problem when booting a client using ipxe/wds pxeboot.com. Basically I have a windows nlb ip address setup on this vlan and the ipaddress has a multicast MAC address.

As soon as bootmgr begins the tftp download of the .wim image my client starts happily responding to the multicast icmp packets that are arriving on its interface. Things are fine either side of the tftp download - so at the windows boot manager image chooser and once the .wim is booting all is well.

I've attached a .jpg showing a client pinging an nlb ip address - this is a multicast MAC address. when the ipxe client starts a tftp download of the .wim, this ipxe client starts responding to icmp ping requests arriving on its interface.

Has anybody seen anything like this before?

Regards

Murray

oh yes, my network is a /16 so those 10.1 addresses are all in the same vlan.